Gearing.



P. LORD.

Patented Apr. 23, 1912.

. Inventor Witnesses Attorneys COLUMBIA PLANOGRAPH CO-. WASHINGTON. n. c.

UNITED STATES FATE m re PETER LORD, OF MONTREAL, QUEBEC, CANADA, ASSIGNORV OF ONE-EIGHTH TO LOUIS A. DELORME, ONE-FOURTH TO JOSEPH A. H. HEBERT, ONE-FOURTH TO CHARLES. LELUAU, AND ONE-EIGHTH TO GUSTAV E ITZWEIRE, ALL OF MONTREAL, CANADA.

GEARING.

Specification o1 Letters Patent.

Patented Apr. 23, 1912.

Application filed May 27, 1910. Serial No. 563,709.

tains to make and use the same.

The invention to be hereinafter described relates to gearing.

In order to more clearly disclose the construction, operation and use of the invention, reference should be had to the accompanying drawings forming part of the present application.

Throughout the several figures of the drawings, like reference characters designate the same parts.

In the drawings: Figure 1 is a plan view, showing the application of the invention; Fig. 2 is a right hand end elevation of Fig. 1; and Fig. 3 is a central cross section through the disk with its radial posts and a-ntifriction rings.

The main objects of the invention are to provide a simple, durable, economical and efficient gearing, which may be used in all places in which gearing may be used.

Only two applications of the invention have been shown in the drawings. It is very clear, however, that there are many other applications in which the invention may be equally well used.

Referring to the drawings in detail, 1 indicates a disk, provided with a hub 2 by which it may be revolubly or otherwise mounted on a shaft or other element to be driven. This disk is provided with a plurality of radially arranged sockets, each adapted to receive a pin or post 3 provided with a head I. This head is adapted to be set flush in a countersunk annular seat in an antifriction ring or rim 5 revolubly mounted about a pin or post. The pins or posts 3 are kept seated by means of keys or cotter pins 6 passed through the disk and through the posts. By this construction, it is possible to remove and renew or repair any of the posts or rings whenever desired. In order to ef fect rotation of the disk 1, a second disk 7, having formed thereon a convolute cam 8, is

provided. This cam is adapted to successively engage the anti-friction rings. Consequently, rotation of the disk 7, during engagement. between the convolute cam and the anti-friction rings, will cause rotation of the disk 1.

In order to clearly illustrate one application of the invention, reference should be had more particularly to Figs. 3 and 4 of the dra *ings. In Figs. 3 and 4, the construction is disclosed as applied to directand-reverse-drive shafts, such as are commonly found in the machinery equipment of many large manufacturing plants, in the driving mechanism of automobiles, &c. In this application, a driving or power shaft 9 and a transmission shaft 10 are provided, the two shafts extending in planes at right angles to each other. In order to effect both direct and reverse drive of the shaft 10 from the shaft 9, two disks 7, each having a convolute cam 8, are provided. These two disks are mounted a short distance aparton the shaft 9 and facing in opposite directions, as shown in Fig. 3. Both of these disks are slidably keyed to the shaft so as to be movable longitudinally of the shaft and yet rotate with the shaft. In order to efiect longitudinal movement of the disks, shifting levers 11 are provided, one for each disk. These levers are each provided with a yoke 12 adapted to travel freely in a groove or recess 13 in a collar or sleeve 14: extending from each disk. The levers, of course, are fulcrumed at 15 in any suitable stationary part of the machine frame, or the structure or building in which the machine is placed. The hub 2 of the disk 1 is revolubly mounted on the shaft 10 between the two disks, and is held against longitudinal movement by means of a collar 16 formed on the shaft. This collar is formed either integrally with the shaft or else separately from the shaft, and then secured to it in any suitable and well known manner. It is provided with a sleeve-like flange 17, having an inwardly projecting annular rim 18. The flange 17 overlies one end of th hub 2, and its rim 18 travels freely in a circular groove formed in the wall of the hub. In this way, it will be possible to have relative rotary movement between the disk 1 and its shaft 10, while at the same time preventing relative longitudinal movement therebetween.

In order to effect driving of the shaft 10 from the disk 1, a friction cone clutch has been provided. This comprises a conically tapered surface 19 formed on one end of the hub 52 and adapted to cooperate with the tapered socket of a cone clutch member 20 keyed to the shaft 10 to slide longitudinally thereof and rotate therewith. The member 20 is provided with a circular groove 21 adapted to freely receive the pins on the ends of a yoke 22 formed on the lower end of a shifting lever 23 fulcrumed at 24:. Consequently, whenever the clutch member 20 is moved to frictionally engage the surface 19, during rotation of the disk 1, the shaft 10 will be driven or rotated.

We will assume that the construction disclosed in Figs. 3 and 4 is applied to the driving mechanism of an automobile, and that the shaft 9 is the power shaft leading from the engine. YVe will also assume that the shaft 10 is the rear axle or transmission shaft for driving the vehicle. 7 Then, if it is desired to effect forward. drive of the vehicle, it is only necessary to shift one of the disks 7 so that its convolute cam will engage the antifriction rings 5 and so rotate the disk 1, the other disk 7 being in inoperative position, as in Fig. 3. The clutch member 20 will then be swung to engage the face 19, causing rotation of the drive or transmission shaft 10. The transmission shaft may be disconnected, of course, to permit coasting, by simply moving the clutch member 20 to the position shown in Fig. 4C, or the disk 7 may be moved to disengage the convolute cam 8 of the anti-friction rings 5, and so prevent driving of the transmission shaft 10 by the power shaft 9.

If it is desired to reverse the drive of the transmission shaft, it is only necessary to disengage the engaged plate 7, and to en gage the disengaged plate 7, of Fig. 3; at the same time moving the clutch element 20 to operative position. It is necessary, of course, to have only one of the disks 7 in operative position at one time. The other disk must, at that time, be inoperative. It is therefore desirable to connect the shifting levers 5 by a rod, link, or other means, in such manner that movement of one lever in one direction will cause opposite movement of the other lever.

It is thought that the operation and use of the invention will be clear from the preceding detailed description.

Changes may be made in the construction, arrangement and disposition of the several parts of the invention, without in any way departing from the field and scope of the same, and it is meant to include all such within this application, wherein only a preferred form has been disclosed.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

In combination, a power shaft, atransmission shaft mounted at right angles thereto, a disk revolubly mounted on said transmission shaft and provided with a plurality of radially projecting anti friction rings, means for clutching said disk to said transmission shaft, two oppositely fastened disks slidably keyed to said power shaft and arranged. on opposite sides of said first named disk, each of said slidably keyed disks being provided wit-h a convolute cam adapted to engage said anti friction rings, and means for simultaneously moving one slidable disk to operative and the other to inoperative position.

Inwitness whereof I have hereunto set my hand in the presence of two witnesses.

PETER LORD.

W'itnesses CLAUDE BERNARD, W. S. BABCOCK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 1). G. 

